My boss has a Lenovo X60 laptop that he places in a dock daily to do his work. Recently, he has been having network connection problems. We have pulled the laptop off the dock and connected the NIC cable to the port and get an IP address, so we know the problem does not lie there. We then put his laptop back in the dock and ran an ipconfig /all to no avail. I have been searching vigorously online to find a support site where we can download updated network drivers for the docking station and have came up empty. (Yes. I know Lenovo has ended support on this model back in December of 2009). Any guidance would be greatly appreciated.

Quick thought. Do all the other ports work? VGA/DVI, audio, mic, and so forth? Just thinking it might be the dock connector on the mother board. Also see if there is any debris in or around the dock connector on the laptop that could be blocking the pins.